Emergency crews mobilized shortly after noon Sunday for reports of a plane that crash landed in a reservoir in Mansfield.

Connecticut state police said the plane made a hard landing in the Willimantic Reservoir shortly after taking off at the nearby Windham Airport, leaving the pilot shaken. Police said the plane was a type of seaplane and equipped to make water landings.

The pilot was the only person onboard and was not injured.

Investigators from the Federal Aviation Administration were expected at the site Sunday.

Police did not immediately identify the type of aircraft involved in the crash or its owner.

There was no immediate word on what might have caused the incident, first reported at 12:17 p.m.